Hi-Level/Cut-Off Adjustment; Vertical Stripe Adjustment - Sony KF-60DX100 Service Manual

3-2-3.

Hi-Level/Cut-Off Adjustment

1) Enter the Video window signal, and set the PICTURE
MODE to "Vivid".
2) Connect an oscilloscope to the CN702 on the BB board.
Measurement positions
R pin 5 (TP742)
G pin 3 (TP743)
B pin 1 (TP744)
3) For each output waveform of R, G, and B, repeat respective
adjustment items so as to attain H/L = 3.74 V ±1 STEP and
C/O = 2.24 V ±1 STEP.
Adjustment position
Category
MCP ADJ1 0
1
2
3
4
5
GND
4) After the adjustment finished, write the data by pressing the
[MUTE] + [ENTER] buttons on the remote commander.
5) Change over the PICTURE MODE to "Mild", and perform
the steps 3) and 4).
6) Enter the Component 480i window signal, and change over
the PICTURE MODE to "Vivid".
7) Perform the steps 3) to 5).
8) Enter the Component 1080i window signal, and change over
the PICTURE MODE to "Vivid".
9) Perform the steps 3) and 4).
10) Enter the Component 480p signal. Set same values as those
adjusted in 9) and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
11) Enter the Component 720p signal. Set same values as those
adjusted in 9) and write the data by pressing the [MUTE] +
[ENTER] buttons on the remote commander.
Item
RDRV
RCUT
GDRV
GCUT
BDRV
BCUT
H/L
C/O

3-3. VERTICAL STRIPE ADJUSTMENT

1. Set the following adjustment conditions, and display the test
pattern.
Adjustment conditions
Category
D-GM TEST
D-GM TPN
2. Set the test pattern to red color, and adjust the EVEN VR so
as to minimize vertical stripes (difference in brightness of
vertical lines every two dots).
Category
D-GM TPN
LCD-DR
LCD-DR
*: Fundamentally, this item is adjusted with the EVEN VR only, but if
the adjustment range is not enough, the ODD VR may also be
adjusted.
Test pattern color combination
DATA=
R
G
B
3. Adjust the green in the same manner.
Category
D-GM TPN
LCD-DR
LCD-DR
*: Fundamentally, this item is adjusted with the EVEN VR only, but if
the adjustment range is not enough, the ODD VR may also be
adjusted.
– 42 –
Item Data
2 G-LUT SW 0
0 T-PATN SW 1
1 T-SIG SEL 0
2 PATN DIR 1
3 SIG LV DIR 0
5 B-LV 15
6 G-LV 15
7 R-LV 15
• Screen Magnify
Should be minimize bright
difference every two dots.
Item Data
8 T-PATN RGB 1 (R)
2 R ODD VR ADJ*
3 R EVEN VR ADJ
1 2 3 4 5 6
a a a
– – –
a a a
– – –
a a a
– – –
Item Data
8 T-PATN RGB 2 (G)
7 G ODD VR ADJ*
8 G EVEN VR ADJ
KF-60DX100
RM-Y910
7
a
a
a